If you are upgrading your hard drive to increase storage capacity, just make sure it hard drive is compatible with your computer and make sure you have a large enough power supply to handle the new hard drive. a 5,400 RPM drive requires less power than a 7,200 RPM or 10,000 RPM drive.
Same goes if you are upgrading your RAM, make sure you have sufficient power to all of the components and that your motherboard can support the RAM you are inserting.
Also, bigger hard drives and more RAM increase the amount of heat your computer produces. It isn't much, but it can be enough to put your computer at risk in some situations. Be sure you have sufficient cooling in your computer. The main culprit of heat related problems are new video cards in combination with new components and by itself.
the computer can become very slow
The risks of computer system are mainly it fall on feet when carried.
No. A standalone computer (that is, one which is not part of any network and which is not connected to the Internet) is vulnerable to a multitude of risks, but it is not vulnerable to the additional risks introduced with connections to a network and, specifically, to the Internet. The risks to which a standalone computer is exposed are a subset of those to which a networked computer is exposed. These risks primarily include risks brought in from users (owing to ignorance, carelessness or bad intentions), such as the introduction of bad software, computer viruses and some-such through portable storage devices like floppy diskettes or memory sticks. The additional thread to which a networked computer is exposed is a thread to pretty much the same vulnerabilities (malware, etc), but these can be obtained in a number of new ways, and may be obtained without the user knowing.
Computer memory
its computer memory
how can i get the video memory address in computer?.
When you install more memory into a computer, the computer's memory level becomes higher
Computer memory is a form of computer data storage, which takes the form of integrated circuits. There are two types of computer memory: Random-access memory (RAM) and Read-only memory (ROM).
A computer needs memory to store data .
ROM is memory the computer will remember. RAM is memory the computer will loss when you turn off the computer.
memory segmentation is the process of dividing the computer memory into different overlapping segments.
Computer memory is what data the computer can keep stored. A computer can return to your favorite web address because it is stored in it's memory for example.